Study of empirical approaches for retrieval of soil moisture in solani river catchment area of Uttarakand, India

Abhinay Kumar, Ankita Pasbola, Ashish Joshi, R. Prakash
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引用次数: 1

Abstract

Empirical approaches are very much site specific and their applicability should be tested before applying to any other data and region. Therefore, in this paper we have studied the applicability of two different empirical approaches of soil moisture retrieval with PALSAR data for Solani river catchment area of Roorkee, Uttarakhand. These two approaches are Dubois model and Oh model. Sensitivity of Oh and Dubois model was observed for change in soil dielectric and surface roughness. Further, inversion technique was developed so that soil moisture can be retrieved with PALSAR data without having a priori information of soil surface roughness. A comparison of both the models for their effectiveness of soil moisture retrieval in Solani river catchment has also been carried.
印度北阿坎德邦索拉尼河流域土壤水分反演的经验方法研究
经验方法在很大程度上是具体地点的,在应用于任何其他数据和区域之前,应对其适用性进行测试。因此,本文研究了两种不同的PALSAR数据反演方法在北阿坎德邦鲁尔基索拉尼河流域土壤水分的适用性。这两种方法分别是Dubois模型和Oh模型。观察了Oh和Dubois模型对土壤介电介质和表面粗糙度变化的敏感性。此外,我们还开发了反演技术,使PALSAR数据能够在不具有土壤表面粗糙度先验信息的情况下反演土壤水分。并对两种模型在索拉尼河流域的土壤水分反演效果进行了比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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